Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie : AINS
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Anasthesiol Intensivmed Notfallmed Schmerzther · Jun 1998
Clinical Trial[Ventilation-perfusion distribution with volume-reduced, pressure-limited ventilation with permissive hypercapnia].
Low volume pressure-limited ventilation with permissive hypercapnia (PH) may decrease the mechanical stress of the lung in acute respiratory insufficiency. Alveolar PCO2 is a determinant of regional ventilation, whereas increased mixed-venous and arterial PCO2 may affect systemic and pulmonary haemodynamics. The aim of this study was to analyse the ventilation-perfusion (VA/Q) distribution during controlled ventilation with permissive hypercapnia. ⋯ The mechanical ventilation with permissive hypercapnia may increase shunt due to alveolar derecruitement and an impaired hypoxic pulmonary vasoconstriction. PaO2 was unchanged due to an increased CO, PvO2 and--to a lesser extent--shift of the oxyhaemoglobin dissociation curve.
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Anasthesiol Intensivmed Notfallmed Schmerzther · Jun 1998
Case Reports[Combined sciatic nerve-3 in 1 block in high risk patient].
We report on a case of combined sciatic nerve block and 3-in-1 block for amputation of lower limb in an ASA IV-V patient 6 days after intraoperative cardiopulmonary resuscitation following induction of general anaesthesia. ⋯ The combined sciatic and 3-in-1 block is a rarely used technique, but for haemodynamically unstable patients it is a safe method for surgery of the lower limb.